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You have probably noticed that an online video clip playing on your mobile phone is interrupted when you leave your house and the Wifi network. The mobile phone connects to 4G, and the video clip resumes. One advantage of multipath networks, which will be common in the future, is that your mobile phone will switch between different networks without you noticing it.
The spread of coronavirus has had consequences that nobody could have imagined when the first reports from China appeared in January. The ongoing effort to limit the spread of infection and protect old people and persons with previous medical conditions concerns society as a whole, including Karlstad University. Many people are worried, of course, about health aspects and about the societal consequences that the measures taken will have.

Stay on the ground

News » 2020-03-09
Internalizing climate education, political and societal incentives are instrumental to reduce flying – new research finds. Air travel accounts for a major share of individual greenhouse gas emissions. A transatlantic round trip adds up to 1.6 tons of carbon dioxide equivalent emission, which is the entire annual carbon budget of a person to maintain a sustainable life. However, the air travel sector is rapidly growing and has almost doubled during the last decade.
A virtual paper-making machine makes it possible to test run and optimise operations without costly downtime in the industry. New research at Karlstad University saves money and spares the environment. ”It is now possible to run the paper-making process virtually, without expensive equipment, to identify the optimal settings for each machine,” says Björn Sjöstrand, who recently submitted his doctoral thesis in chemical engineering at Karlstad University.
Karlstad Business School has qualified for a final review by AACSB, a non-profit organisation that works with quality enhancement and accreditation of business schools around the world. The review will be performed in connection with a site visit late 2020 or early 2021. “I am incredibly proud of the quality development towards accreditation that we have achieved together over the last few years,” says Martin Löfgren, Head of Department at Karlstad Business School.
Ground breaking research co-authored by Avit Bhowmik published in the Proceedings of the National Academy of Sciences presents six interventions that can rapidly transform societies for climate action. Safely achieving the goals of the Paris Climate Agreement demands a worldwide radical transformation of societies to help bend the emission curve immediately and halve global emissions no later than 2030. But, this is not an easy task!
Javid Taheri, a professor of Computer Science at Karlstad University, has received the “Award for Excellence” by the IEEE Technical Committee on Scalable Computing (TCSC). He was presented with this award for his contributions on cloud computing and use of artificial intelligence to optimise highly distributed cloud-based scalable systems. “I’m very happy to receive this award.
When the Swedish Defence University and The Swedish Civil Contingencies Agency (MSB) arranged the contest Cyber Challenge on Thursday, 6 February, 14 teams of university students vied to prove that they could act as the best experts on national security.
Research at Karlstad University shows that sludge and ashes as paper mill residues can be used as effective fertiliser. This involves biochar, that is, carbon from organic material returned to the forest and thus closing the cycle. "Biochar has many beneficial effects on the environment," says Maria Sandberg, senior lecturer in environment and energy systems and research leader for the project.
The anonymity network Tor, used daily by millions of users around the world, is important for people in vulnerable situations, for instance in order to avoid surveillance or control. Two Karlstad University researchers have now identified flaws in Tor’s anonymity function and contributed to technologies that make the network safer for users. The purpose of Tor is to allow users to surf the internet anonymously without information about visited webpages being registered.
Working together with other researchers in a cross-country collaboration makes you more open to develop new ideas and look at things from another angle, says Swedish researcher Annika Fredén, currently working at the University of Montreal. Annika Fredén is a Senior Lecturer in Political Science at Karlstad University, and also Principal Investigator in the program WASP-HS.